3 Open Source Alternatives To Onenote

Trilium Notes is a hierarchical note-taking application designed for building large personal knowledge bases. It offers a robust set of features to help you organize and manage your information effectively, whether for personal or professional use.

• Hierarchical Structure: Organize your notes in a tree-like structure to easily manage large volumes of information.
• Cloning: Duplicate notes effortlessly to reuse content without redundancy.
• Math Support: Integrate mathematical expressions seamlessly within your notes.
• Autoformatting: Automatically format text as you type for a cleaner, more readable layout.
• Code Notes: Include source code snippets with syntax highlighting for technical documentation.
• Note Navigation: Quickly navigate between notes using intuitive links and shortcuts.
• Note Hoisting: Temporarily elevate a note to the root level for focused editing.
• Versioning: Keep track of changes with note versioning and easily revert to previous states.
• Attributes: Add custom metadata to notes for enhanced searchability and organization.
• Scripting: Automate tasks and extend functionality with built-in scripting support.
• Synchronization: Sync your notes across devices using a self-hosted or third-party server.
• Encryption: Protect sensitive information with note encryption.
• Relation Maps: Visualize relationships between notes to better understand connections.
• Markdown Support: Import and export notes in Markdown format for compatibility with other tools.
• Web Clipper: Save web content directly into your knowledge base with the web clipper extension.

Trilium Notes is available as a desktop application for Linux and Windows or as a web application that you can host on your own server. While a Mac OS build is available, it is currently unsupported. The application is open-source and distributed under the AGPL-3.0 license, making it a versatile and powerful tool for personal knowledge management.

Xournal++ is an open-source and cross-platform note-taking software designed for speed, flexibility, and functionality. It serves as a modern rewrite and a more feature-rich version of the original Xournal program, offering enhanced capabilities for handwritten notes and PDF annotations. Available on macOS, Windows, and Linux, Xournal++ is perfect for students, professionals, and anyone in need of a robust note-taking solution.

• Handwrite your notes: Support for pressure-sensitive stylus and drawing tablets like Wacom, Huion, and XP-Pen.
• Robust tools: Customizable pen, highlighter, and eraser tools to suit your writing style.
• Organize your work: Use layers for complex notes and page previews to keep track.
• Enhance note-taking: Add images, create shapes, and snap objects to grids or specific angles.
• Scientific support: Built-in LaTeX editor for creating equations, circuits, and molecular structures.
• Customization: Tailor your toolbar layout and use or create plugins via Lua programming.
• Audio integration: Record audio while writing and link recordings to objects in your notes.

Xournal++ brings a comprehensive suite of features to ensure your note-taking process is as efficient and personalized as possible, making it an indispensable tool for various applications.

Standard Notes is a free, secure note-taking app designed to provide unparalleled privacy and security for all your notes and files. With powerful end-to-end encryption, it ensures that only you can access your data, providing peace of mind and a secure environment for your thoughts and ideas. The app offers seamless cross-platform syncing, allowing you to access your notes on unlimited devices effortlessly. Whether you're a writer, legal professional, or journalist, Standard Notes is built to cater to your specific needs with a focus on privacy and longevity.

• End-to-End Encryption: Protects your notes and files so that only you can read them.
• Cross-Platform Syncing: Seamlessly access your notes on multiple devices without any hassle.
• Unlimited Devices: Sync your notes across as many devices as you need.
• Privacy-Focused: Built with a strong emphasis on user privacy and data security.
• Open Source: The source code is publicly available, ensuring transparency and trust.
• Longevity: Designed to be a long-lasting solution for your note-taking needs.
• Customizable: Offers various extensions and themes to tailor the app to your preferences.
• Offline Access: Access your notes even without an internet connection.

Standard Notes is more than just a note-taking app; it's a steel vault for your mind, allowing you to write fearlessly and take back control of your data. With its robust features and commitment to privacy, Standard Notes stands out as a reliable and secure choice for anyone looking to protect their digital notes.